Correcting Stations Data and adding latitudes and longitudes.

Sys.Date()
[1] "2019-03-26"

Feel The Station Data

colSums(is.na(stations))
  Station_ID Station_Name Go_live_date       Region       Status 
           0            3            3            3            3 

Find Missing Stations

sapply(stations, function(itr) stations[which(is.na(itr)),]$Station_ID)$Station_Name
[1] 4110 4118 4276

Fixing Missing Stations

i_4110<-which(stations$Station_ID=="4110")
stations[ i_4110,]<- c(Station_ID="4110",
                   Station_Name="Soul Cycle",
                   Go_live_date="2017-09-07",
                   Region="DTLA",
                   Status="Inactive")
i_4276<-which(stations$Station_ID=="4276")
stations[ i_4276,]<- c(Station_ID="4276",
                   Station_Name="Mariachi Plaza",
                   Go_live_date="2017-12-02",
                   Region="DTLA",
                   Status="Inactive")
#https://www.laworks.com/opportunity/a0C1N00000GHHzqUAH
##This one needs to be recoded for all the other files.
i_4118<-which(stations$Station_ID=="4118")
stations[ i_4118,]<- c(Station_ID="4118",
                   Station_Name="Channing St",
                   Go_live_date="2017-9-07",
                   Region="DTLA",
                   Status="Inactive")
# These two stations were special events for 3/26/2017.
#https://thecabe.com/forum/threads/ciclavia-venice-beach-california-march-26-2017.107254/
station_3009<- c(Station_ID="3009",
                 Station_Name="Windward and Pacific",
                 Go_live_date="2017-26-03",
                 Region="Venice",
                 Status="Inactive")
stations<- rbind(stations, station_3009)
station_3039<- c(Station_ID="3039",
                 Station_Name="Culver and Washington",
                 Go_live_date="2017-26-03",
                 Region="Venice",
                 Status="Inactive")
stations<- rbind(stations, station_3039)
# This station is the same as the Olive and 5th station, but it moved so far, it needs a new name.
station_9999<- c(Station_ID="9999",
                 Station_Name="Olive and 6th",
                 Go_live_date="2016-10-01",
                 Region="DTLA",
                 Status="Inactive",
                 latitude = 34.048038,
                 longitude = -118.253738)
stations<- rbind(stations, station_9999)

Finding Active/Inactive Stations/Region

#virtual region N/A
table(activeAllStationList$Region) 

      DTLA        N/A Port of LA     Venice 
        68          1         12         14 

The loops below try to find the most frequent latitudes and longitudes associated with each station. Some stations have multiple latitudes and longitudes with varying numbers. We’ll do this to standardize the data. Once we find the most frequent latitude and longitude, we’ll write it to the stations file.

bikes<- readxl::read_xlsx("./data/LABikeData.xlsx")

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getLatLongForStation <- function(stationId)
{
  startLatLongList<-split(bikes, bikes$start_station==stationId)[["TRUE"]][c("start_lat","start_lon")]
  endLatLongList<-split(bikes, bikes$end_station==stationId)[["TRUE"]][c("end_lat","end_lon")]
  
  uniqLat <- unique(c(startLatLongList$start_lat,endLatLongList$end_lat))
  uniqLong <- unique(c(startLatLongList$start_lon,endLatLongList$end_lon))
  maxNoOfObsForLat<-rep(NA, 0)
  maxNoOfObsForLong<-rep(NA,0)
  
  for (lat in uniqLat)
  {
     startLatCount<- nrow(startLatLongList[startLatLongList$start_lat==lat,])
     if(is.null(startLatCount))
        startLatCount<-0
     
     endLatCount <- nrow(endLatLongList[endLatLongList$end_lat==lat, ])
     if(is.null(endLatCount))
        endLatCount<-0
     
     latCount<-startLatCount + endLatCount
     maxNoOfObsForLat<-c(maxNoOfObsForLat, latCount)
  }
  
  for (long in uniqLong)
  {
     startLongCount<- nrow(startLatLongList[startLatLongList$start_lon==long,])
     if(is.null(startLongCount))
       startLongCount<-0
     
     endLongCount <- nrow(endLatLongList[endLatLongList$end_lon==long, ])
     if(is.null(endLongCount))
        endLongCount<-0
     
     LongCount<-startLongCount + endLongCount
     maxNoOfObsForLong<-c(maxNoOfObsForLong, LongCount)
  }
  
  LatDf<-data.frame(uniqLat,maxNoOfObsForLat)
  LongDf<-data.frame(uniqLong, maxNoOfObsForLong)
  
  tmpLat<-0
  tmpLong<-0
  
  if(dim(LatDf)[1] >=1 & dim(LatDf)[2] >=1)
    tmpLat<-LatDf[order(LatDf$maxNoOfObsForLat, decreasing = TRUE),][1,1]
  
  if(dim(LongDf)[1] >=1 & dim(LongDf)[2] >=1)
    tmpLong<-LongDf[order(LongDf$maxNoOfObsForLong, decreasing = TRUE),][1,1]
  
  return(c(tmpLat, tmpLong))
  
}
system.time(vOfLatLong<-sapply(stations$Station_ID, getLatLongForStation))
   user  system elapsed 
129.645   8.987 138.871 
cleanStations<-cbind(stations, latitude=unname(vOfLatLong[1,]), longitude=unname(vOfLatLong[2,]))

more cleanup station id 4164, 4217 no entry in bike data removing

cleanStations<-cleanStations[!cleanStations$Station_ID==4164, ]
cleanStations<-cleanStations[!cleanStations$Station_ID==4217, ]
write.csv(cleanStations, "./data/stations_cleaned.csv", row.names = FALSE)

Clean Bike Data

colSums(is.na(bikes))
            trip_id             bike_id       start_station         end_station trip_route_category 
                  0                   0                   0               43198                   0 
         start_time            end_time           start_lat           start_lon             end_lat 
                  0                   0                1354                1354                9110 
            end_lon       plan_duration     passholder_type 
               9110                 384                   0 

NA’s for bike data columns ..need to fix end_station (43198) start_lat (1354), start_lon (1354), end_lat (9110), end_lon (9110), plan_duration (384)

Fix the missing end stations:

for(i in 1:length(bikes$end_station)){
  if(is.na(bikes$end_station[i])){
      latitude<- bikes$end_lat[i]
      index<- match(latitude, cleanStations$latitude)
      if(index!=1 | is.na(index) ){
        if(is.na(index)){
          longitude<- bikes$end_lon[i]
          index2<- match(longitude, cleanStations$longitude)
          bikes$end_station[i]<- cleanStations[index2, "Station_ID"]
        }
        else{
          bikes$end_station[i]<- cleanStations[index, "Station_ID"]
        }
      }
  }
}

Look at the missing data again to see what we have.

nrow(bikes[which(is.na(bikes$end_station)), ])
[1] 1663

Fill in the missing stations that have missing end lat/lon as virtual stations.

for(i in 1:length(bikes$end_station)){
  if(is.na(bikes$end_station[i])){
          bikes$end_station[i]<- 3000
  }
}

Start latitude & longitude are NA ..they are mapped to virtual station 3000

unique(bikes[which(is.na(bikes$start_lat)), ]$start_station)
[1] 3000
unique(bikes[which(is.na(bikes$start_lon)), ]$start_station)
[1] 3000

Now fix for End latitude & longitude both has mapped to virtual station 3000

unique(bikes[which(is.na(bikes$end_lat)), ]$end_station)
[1] "3000"
unique(bikes[which(is.na(bikes$end_lon)), ]$end_station)
[1] "3000"

After looking at the map, location 4118 and 4108 are the same. Code the 4118 as 4008.

bikes[which(bikes$end_station==4118), "end_station"]<- 4108

passholders and plan duration.
There are 269 coded as 150. that are monthly passes. going to recode those as 30.

table(bikes$plan_duration, bikes$passholder_type)
     
      Annual Pass Flex Pass Monthly Pass One Day Pass Walk-up
  0             0         0            0            0  132566
  1             0         0            0        23319   87262
  30            0         0       365449            0    2276
  150           0         0          269            0       0
  365        2057     25160         1044            0       0
for(i in 1:length(bikes$start_station)){
  if(bikes$plan_duration[i] == 150 & !is.na(bikes$plan_duration[i])  ){
    bikes$plan_duration[i]<- 30
  }
}

There are 384 coded as na
it looks like all these are monthly passholders. adding 30 in for the duration on these too.

bikes[which(is.na(bikes$plan_duration)), ]  
bikes[is.na(bikes$plan_duration), ]$passholder_type
  [1] "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass"
  [8] "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass"
 [15] "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass"
 [22] "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass"
 [29] "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass"
 [36] "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass"
 [43] "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass"
 [50] "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass"
 [57] "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass"
 [64] "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass"
 [71] "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass"
 [78] "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass"
 [85] "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass"
 [92] "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass"
 [99] "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass"
[106] "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass"
[113] "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass"
[120] "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass"
[127] "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass"
[134] "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass"
[141] "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass"
[148] "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass"
[155] "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass"
[162] "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass"
[169] "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass"
[176] "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass"
[183] "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass"
[190] "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass"
[197] "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass"
[204] "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass"
[211] "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass"
[218] "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass"
[225] "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass"
[232] "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass"
[239] "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass"
[246] "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass"
[253] "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass"
[260] "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass"
[267] "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass"
[274] "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass"
[281] "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass"
[288] "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass"
[295] "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass"
[302] "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass"
[309] "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass"
[316] "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass"
[323] "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass"
[330] "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass"
[337] "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass"
[344] "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass"
[351] "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass"
[358] "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass"
[365] "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass"
[372] "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass"
[379] "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass" "Monthly Pass"
for(i in 1:length(bikes$start_station)){
  if(bikes$passholder_type[i] == "Monthly Pass" & is.na(bikes$plan_duration[i])  ){
    bikes$plan_duration[i]<- 30
  }
}
#all the plan durations are fixed now
summary(as.factor(bikes$plan_duration))
     0      1     30    365 
132566 110581 368378  28261 

So, lots of walkups buy a full day pass and some even buy a monthly pass. 1044 monthly passes coded as 365 day passes. not sure what those are.
nothing really unique about these all different times and locations.

table(bikes$plan_duration,bikes$passholder_type)
     
      Annual Pass Flex Pass Monthly Pass One Day Pass Walk-up
  0             0         0            0            0  132566
  1             0         0            0        23319   87262
  30            0         0       366102            0    2276
  365        2057     25160         1044            0       0
bikes[which(bikes$plan_duration==365 & bikes$passholder_type=="Monthly Pass"), ]

Most of the NA values should took care, double check.

summary(bikes)
    trip_id            bike_id          start_station      end_station        trip_route_category  start_time       
 Min.   :  1912818   Length:639786      Min.   :3000.000   Length:639786      Length:639786       Length:639786     
 1st Qu.: 28656588   Class :character   1st Qu.:3029.000   Class :character   Class :character    Class :character  
 Median : 63803192   Mode  :character   Median :3052.000   Mode  :character   Mode  :character    Mode  :character  
 Mean   : 61519730                      Mean   :3300.809                                                            
 3rd Qu.: 96710610                      3rd Qu.:3082.000                                                            
 Max.   :112732252                      Max.   :4276.000                                                            
                                                                                                                    
   end_time           start_lat          start_lon            end_lat            end_lon         
 Length:639786      Min.   : 0.00000   Min.   :-118.4913   Min.   : 0.00000   Min.   :-118.4913  
 Class :character   1st Qu.:34.04113   1st Qu.:-118.2612   1st Qu.:34.04060   1st Qu.:-118.2609  
 Mode  :character   Median :34.04681   Median :-118.2524   Median :34.04661   Median :-118.2528  
                    Mean   :34.04127   Mean   :-118.2645   Mean   :34.04022   Mean   :-118.2619  
                    3rd Qu.:34.05110   3rd Qu.:-118.2410   3rd Qu.:34.05088   3rd Qu.:-118.2388  
                    Max.   :34.16529   Max.   : 118.2383   Max.   :34.16529   Max.   :   0.0000  
                    NA's   :1354       NA's   :1354        NA's   :9110       NA's   :9110       
 plan_duration       passholder_type   
 Min.   :  0.00000   Length:639786     
 1st Qu.:  1.00000   Class :character  
 Median : 30.00000   Mode  :character  
 Mean   : 33.56933                     
 3rd Qu.: 30.00000                     
 Max.   :365.00000                     
                                       

now we need to fix outliers in the data.
Starting to look for outliers. We’ll do the obvious outliers first, the locations with 0 lat/lon, or positive lon

temp1<- bikes[which(bikes$start_lon>0),]
temp1
cleanStations[which(cleanStations$Station_ID=="3039"), ]
#this one is coded as stn 3039 but we know that one was only active for an event.  go by the start lat/lon
match(temp1$start_lon, cleanStations$longitude)
[1] NA
match(temp1$start_lat, cleanStations$latitude)
[1] NA
#they don't match anything in our station data. 
# the map indicates channing street and the LA warehouse stations 4108 and 4118
# code this one as 4108 1 la warehouse
bikes[which(bikes$start_lon>0),c("start_station", "start_lon")]<- c(4108,  -118.238258)
#Need to just combine 1 LA WHSE and Channing ST. 
bikes[which(bikes$end_station=="4118"), "end_station" ] <- 4108 
bikes[which(bikes$start_station=="4108"),]

Now the zeros

bikes_temp <- bikes #save this off in case i screw something up.
# start location
temp<- bikes[which(bikes$start_lon==0 | bikes$start_lat==0),]
index<- match( temp$start_station, cleanStations$Station_ID) #67
temp
index # these are all the la warehouse
 [1] 67 67 67 67 67 67 67 67 67 67 67 67 67 67 67 67 67 67 67 67 67 67 67 67 67 67 67 67 67 67 67 67
bikes[which(bikes$start_lon==0|bikes$start_lat==0), "start_lon"]<- cleanStations$longitude[67]
bikes[which(bikes$start_lon==0|bikes$start_lat==0), "start_lat"]<- cleanStations$latitude[67]                                                                     
#end location
temp<- bikes[which(bikes$end_lon==0 | bikes$end_lat==0),]
match( temp$end_station, cleanStations$Station_ID)# all 67 again
 [1] 67 67 67 67 67 67 67 67 67 67 67 67 67 67 67 67 67 67 67 67 67 67 67 67 67 67 67 67 67 67 67 67 67 67 67 67 67
[38] 67 67 67 67 67 67 67 67 67 67 67
bikes[which(bikes$end_lon==0 | bikes$end_lat==0),"end_lon"]<- cleanStations$longitude[67]
bikes[which(bikes$end_lon==0 | bikes$end_lat==0),"end_lat"]<- cleanStations$latitude[67]

Now that the locations appear to be fixed, let’s look at the summary again

summary(bikes)
    trip_id            bike_id          start_station      end_station        trip_route_category  start_time       
 Min.   :  1912818   Length:639786      Min.   :3000.000   Length:639786      Length:639786       Length:639786     
 1st Qu.: 28656588   Class :character   1st Qu.:3029.000   Class :character   Class :character    Class :character  
 Median : 63803192   Mode  :character   Median :3052.000   Mode  :character   Mode  :character    Mode  :character  
 Mean   : 61519730                      Mean   :3300.811                                                            
 3rd Qu.: 96710610                      3rd Qu.:3082.000                                                            
 Max.   :112732252                      Max.   :4276.000                                                            
                                                                                                                    
   end_time           start_lat          start_lon            end_lat            end_lon         
 Length:639786      Min.   :33.71098   Min.   :-118.4913   Min.   :33.71098   Min.   :-118.4913  
 Class :character   1st Qu.:34.04113   1st Qu.:-118.2612   1st Qu.:34.04060   1st Qu.:-118.2609  
 Mode  :character   Median :34.04681   Median :-118.2524   Median :34.04661   Median :-118.2528  
                    Mean   :34.04298   Mean   :-118.2708   Mean   :34.04281   Mean   :-118.2709  
                    3rd Qu.:34.05110   3rd Qu.:-118.2410   3rd Qu.:34.05088   3rd Qu.:-118.2388  
                    Max.   :34.16529   Max.   :-118.1165   Max.   :34.16529   Max.   :-118.1165  
                    NA's   :1354       NA's   :1354        NA's   :9110       NA's   :9110       
 plan_duration       passholder_type   
 Min.   :  0.00000   Length:639786     
 1st Qu.:  1.00000   Class :character  
 Median : 30.00000   Mode  :character  
 Mean   : 33.56933                     
 3rd Qu.: 30.00000                     
 Max.   :365.00000                     
                                       

Joining data frames

sum(is.na(bikes$start_time))
[1] 0
start_stations<- cleanStations
end_stations<- cleanStations
colnames(start_stations)<- c("start_station", "start_station_Name",
                             "start_Go_live_date",
                             "start_Region", "start_Status", "start_latitude",
                             "start_longitude")
colnames(end_stations)<- c("end_station", "end_station_Name", "end_Go_live_date",
                           "end_Region", "end_Status", "end_latitude",
                           "end_longitude")
colnames(bikes)
 [1] "trip_id"             "bike_id"             "start_station"       "end_station"         "trip_route_category"
 [6] "start_time"          "end_time"            "start_lat"           "start_lon"           "end_lat"            
[11] "end_lon"             "plan_duration"       "passholder_type"    

Joining the stations data table to the bikes data table. Coding the start and end locations.

df_1<- merge(bikes, start_stations, all.x=TRUE, sort=FALSE)
bikes_full<- merge(df_1, end_stations, all.x=TRUE, sort=FALSE)

revisit types doesnt make sense to me for end station do we need to fix or

summary(bikes_full)
 end_station        start_station         trip_id            bike_id          trip_route_category  start_time       
 Length:639786      Min.   :3000.000   Min.   :  1912818   Length:639786      Length:639786       Length:639786     
 Class :character   1st Qu.:3029.000   1st Qu.: 28656588   Class :character   Class :character    Class :character  
 Mode  :character   Median :3052.000   Median : 63803192   Mode  :character   Mode  :character    Mode  :character  
                    Mean   :3300.811   Mean   : 61519730                                                            
                    3rd Qu.:3082.000   3rd Qu.: 96710610                                                            
                    Max.   :4276.000   Max.   :112732252                                                            
                                                                                                                    
   end_time           start_lat          start_lon            end_lat            end_lon         
 Length:639786      Min.   :33.71098   Min.   :-118.4913   Min.   :33.71098   Min.   :-118.4913  
 Class :character   1st Qu.:34.04113   1st Qu.:-118.2612   1st Qu.:34.04060   1st Qu.:-118.2609  
 Mode  :character   Median :34.04681   Median :-118.2524   Median :34.04661   Median :-118.2528  
                    Mean   :34.04298   Mean   :-118.2708   Mean   :34.04281   Mean   :-118.2709  
                    3rd Qu.:34.05110   3rd Qu.:-118.2410   3rd Qu.:34.05088   3rd Qu.:-118.2388  
                    Max.   :34.16529   Max.   :-118.1165   Max.   :34.16529   Max.   :-118.1165  
                    NA's   :1354       NA's   :1354        NA's   :9110       NA's   :9110       
 plan_duration       passholder_type    start_station_Name start_Go_live_date start_Region       start_Status      
 Min.   :  0.00000   Length:639786      Length:639786      Length:639786      Length:639786      Length:639786     
 1st Qu.:  1.00000   Class :character   Class :character   Class :character   Class :character   Class :character  
 Median : 30.00000   Mode  :character   Mode  :character   Mode  :character   Mode  :character   Mode  :character  
 Mean   : 33.56933                                                                                                 
 3rd Qu.: 30.00000                                                                                                 
 Max.   :365.00000                                                                                                 
                                                                                                                   
 start_latitude     start_longitude     end_station_Name   end_Go_live_date    end_Region         end_Status       
 Min.   :33.71098   Min.   :-118.4913   Length:639786      Length:639786      Length:639786      Length:639786     
 1st Qu.:34.04113   1st Qu.:-118.2612   Class :character   Class :character   Class :character   Class :character  
 Median :34.04681   Median :-118.2524   Mode  :character   Mode  :character   Mode  :character   Mode  :character  
 Mean   :34.04299   Mean   :-118.2708                                                                              
 3rd Qu.:34.05110   3rd Qu.:-118.2410                                                                              
 Max.   :34.16529   Max.   :-118.1165                                                                              
 NA's   :1354       NA's   :1354                                                                                   
  end_latitude      end_longitude      
 Min.   :33.71098   Min.   :-118.4913  
 1st Qu.:34.04060   1st Qu.:-118.2612  
 Median :34.04661   Median :-118.2528  
 Mean   :34.04281   Mean   :-118.2710  
 3rd Qu.:34.05088   3rd Qu.:-118.2388  
 Max.   :34.16529   Max.   :-118.1165  
 NA's   :10287      NA's   :10287      

Let’s explore the starting lat and the one that came from the station table (most frequent location). I’ll just use a cartesian distance because we don’t need too much accuracy.

start_lat_diff<- (bikes_full$start_lat - bikes_full$start_latitude)*1.15077945*60*5280
start_lon_diff<- (bikes_full$start_lon - bikes_full$start_longitude)*1.15077945*60*5280
end_lat_diff<- (bikes_full$end_lat - bikes_full$end_latitude)*1.15077945*60*5280
end_lon_diff<- (bikes_full$end_lon - bikes_full$end_longitude)*1.15077945*60*5280
plot(start_lon_diff, start_lat_diff, main="Difference in Start Position Most Frequent and Coded", xlab="Longitude Difference (ft)",ylab= "Latitude Diff (ft)",ylim=c(-500,500), xlim=c(-400,400))
grid()

plot(end_lon_diff, end_lat_diff, main="Difference in End Position Most Frequent and Coded", xlab="Longitude Difference (ft)",ylab= "Latitude Diff (ft)",  ylim=c(-500,500), xlim=c(-400,400))
grid()

bikes_full[which(start_lat_diff< -300),] #4104 obs
bikes_full[which(end_lat_diff< -300),] #3787 obs
cleanStations[which(cleanStations$Station_ID=="3063"), ]
#looks like that's station 3063 at Pershing Square.  That's the station 9999 that I added for 6th and olive.
cleanStations[which(cleanStations$Station_ID=="9999"), ]
#they mustve moved where the station 3063 was. I'm going to code these as olive and 6th since it's pretty far away from olive and 5th.  
temp1<- cleanStations[which(cleanStations$Station_ID=="9999"), c('latitude', 'longitude', "Go_live_date", 'Status','Station_Name')]
  
  bikes_full[which(start_lat_diff< -300), "start_station"]<- "9999"
  bikes_full[which(start_lat_diff< -300), "start_latitude"]<- temp1[1]
  bikes_full[which(start_lat_diff< -300), "start_longitude"]<- temp1[2]
  bikes_full[which(start_lat_diff< -300), "start_Go_live_date"]<- temp1[3]
  bikes_full[which(start_lat_diff< -300), "start_Status"]<- temp1[4]
  bikes_full[which(start_lat_diff< -300), "start_station_Name"]<- temp1[5]
  
  bikes_full[which(end_lat_diff< -300), "end_station"]<- "9999"
  bikes_full[which(end_lat_diff< -300), "end_latitude"]<- temp1[1]
  bikes_full[which(end_lat_diff< -300), "end_longitude"]<- temp1[2]
  bikes_full[which(end_lat_diff< -300), "end_Go_live_date"]<- temp1[3]
  bikes_full[which(end_lat_diff< -300), "end_Status"]<- temp1[4]
  bikes_full[which(end_lat_diff< -300), "end_station_Name"]<- temp1[5]
bikes_full[which(start_lon_diff> 200),] #87 obs
bikes_full[which(end_lon_diff> 200),] #80 obs
# 3 stations Grand/LATTC, 7th & Westminster, Pasadena Central Library
# 4227, 4213, 4148
bikes_full[which(start_lon_diff> 200 & bikes_full$start_station=="4227"),] #37 here
# we'll code these as the starting locations in the station table and keep the original long/lat
temp1<- bikes_full[which(start_lon_diff > 200 & bikes_full$start_station=="4227"),c("start_lat", "start_lon")]
bikes_full[which(start_lon_diff > 200 & bikes_full$start_station=="4227"),"start_latitude"]<- temp1$start_lat[1]
bikes_full[which(start_lon_diff > 200 & bikes_full$start_station=="4227"),"start_longitude"]<- temp1$start_lon[1]
bikes_full[which(end_lon_diff > 200 & bikes_full$end_station=="4227"),"end_latitude"]<- temp1$start_lat[1]
bikes_full[which(end_lon_diff > 200 & bikes_full$end_station=="4227"),"end_longitude"]<- temp1$start_lon[1]
bikes_full[which(start_lon_diff> 200),] #50 left
bikes_full[which(start_lon_diff> 200 & bikes_full$start_station=="4213"),] #48 here
bikes_full[which(end_lon_diff> 200 & bikes_full$end_station=="4213"),] #40 here
#looks like they moved 7th and westminster down the street.  
# we'll keep the lats/lons
temp1<- bikes_full[which(start_lon_diff > 200 & bikes_full$start_station=="4213"),c("start_lat", "start_lon")]
bikes_full[which(start_lon_diff > 200 & bikes_full$start_station=="4213"),"start_latitude"]<- temp1$start_lat[1]
bikes_full[which(start_lon_diff > 200 & bikes_full$start_station=="4213"),"start_longitude"]<- temp1$start_lon[1]
bikes_full[which(end_lon_diff > 200 & bikes_full$end_station=="4213"),"end_latitude"]<- temp1$start_lat[1]
bikes_full[which(end_lon_diff > 200 & bikes_full$end_station=="4213"),"end_longitude"]<- temp1$start_lon[1]
bikes_full[which(start_lon_diff> 200),] #2 left
bikes_full[which(end_lon_diff> 200),] #2 left
#pasadena library looks like they put the station in a different start and these 2 are before the live start date.
temp1<- bikes_full[which(start_lon_diff > 200 & bikes_full$start_station=="4148"),c("start_lat", "start_lon")]
bikes_full[which(start_lon_diff > 200 & bikes_full$start_station=="4148"),"start_latitude"]<- temp1$start_lat[1]
bikes_full[which(start_lon_diff > 200 & bikes_full$start_station=="4148"),"start_longitude"]<- temp1$start_lon[1]
bikes_full[which(end_lon_diff > 200 & bikes_full$end_station=="4148"),"end_latitude"]<- temp1$start_lat[1]
bikes_full[which(end_lon_diff > 200 & bikes_full$end_station=="4148"),"end_longitude"]<- temp1$start_lon[1]
bikes_full[which(start_lon_diff> 100),] #1364
bikes_full[which(end_lon_diff> 100),] #1041
#station 3046 2nd & Hill, looks like they had it around the corner for awhile.  
temp1<- bikes_full[which(start_lon_diff > 100 & bikes_full$start_station=="3046"),c("start_lat", "start_lon")]
bikes_full[which(start_lon_diff > 100 & bikes_full$start_station=="3046"),"start_latitude"]<- temp1$start_lat[1]
bikes_full[which(start_lon_diff > 100 & bikes_full$start_station=="3046"),"start_longitude"]<- temp1$start_lon[1]
bikes_full[which(end_lon_diff > 100 & bikes_full$end_station=="3046"),"end_latitude"]<- temp1$start_lat[1]
bikes_full[which(end_lon_diff > 100 & bikes_full$end_station=="3046"),"end_longitude"]<- temp1$start_lon[1]
bikes_full[which(start_lon_diff< -100),] #3157
bikes_full[which(end_lon_diff< -100),] #4039
#looks like stn 3005 7th and flower got moved around the corner.
temp1<- bikes_full[which(start_lon_diff < -100 & bikes_full$start_station=="3005"),c("start_lat", "start_lon")]
bikes_full[which(start_lon_diff < -100 & bikes_full$start_station=="3005"),"start_latitude"]<- temp1$start_lat[1]
bikes_full[which(start_lon_diff < -100 & bikes_full$start_station=="3005"),"start_longitude"]<- temp1$start_lon[1]
bikes_full[which(end_lon_diff < -100 & bikes_full$end_station=="3005"),"end_latitude"]<- temp1$start_lat[1]
bikes_full[which(end_lon_diff < -100 & bikes_full$end_station=="3005"),"end_longitude"]<- temp1$start_lon[1]
# also theres station 4146 city hall west in pasadena 3 observations.  looks like it got moved up the st.  these trips were before the start date. 
temp1<- bikes_full[which(start_lon_diff < -100 & bikes_full$start_station=="4146"),c("start_lat", "start_lon")]
bikes_full[which(start_lon_diff < -100 & bikes_full$start_station=="4146"),"start_latitude"]<- temp1$start_lat[1]
bikes_full[which(start_lon_diff < -100 & bikes_full$start_station=="4146"),"start_longitude"]<- temp1$start_lon[1]
bikes_full[which(end_lon_diff < -100 & bikes_full$end_station=="4146"),"end_latitude"]<- temp1$start_lat[1]
bikes_full[which(end_lon_diff < -100 & bikes_full$end_station=="4146"),"end_longitude"]<- temp1$start_lon[1]
start_lat_diff<- (bikes_full$start_lat - bikes_full$start_latitude)*1.15077945*60*5280
start_lon_diff<- (bikes_full$start_lon - bikes_full$start_longitude)*1.15077945*60*5280
end_lat_diff<- (bikes_full$end_lat - bikes_full$end_latitude)*1.15077945*60*5280
end_lon_diff<- (bikes_full$end_lon - bikes_full$end_longitude)*1.15077945*60*5280
plot(start_lon_diff, start_lat_diff, main="Difference in Start Position Most Frequent and Coded", xlab="Longitude Difference (ft)",ylab= "Latitude Diff (ft)",ylim=c(-500,500), xlim=c(-400,400))
grid()

plot(end_lon_diff, end_lat_diff, main="Difference in End Position Most Frequent and Coded", xlab="Longitude Difference (ft)",ylab= "Latitude Diff (ft)",  ylim=c(-500,500), xlim=c(-400,400))
grid()

revisit 66

bikes_full[which(end_lat_diff> 20),] #28
#This is the LA Warehouse location.  80ft off.  we'll leave these be.  there's no indication where this station really is.  it's in a sketchy part of town and the lat/lon indicated it's behind a fence with concertina wire. 
summary(bikes_full)
 end_station        start_station         trip_id            bike_id          trip_route_category  start_time       
 Length:639786      Length:639786      Min.   :  1912818   Length:639786      Length:639786       Length:639786     
 Class :character   Class :character   1st Qu.: 28656588   Class :character   Class :character    Class :character  
 Mode  :character   Mode  :character   Median : 63803192   Mode  :character   Mode  :character    Mode  :character  
                                       Mean   : 61519730                                                            
                                       3rd Qu.: 96710610                                                            
                                       Max.   :112732252                                                            
                                                                                                                    
   end_time           start_lat          start_lon            end_lat            end_lon         
 Length:639786      Min.   :33.71098   Min.   :-118.4913   Min.   :33.71098   Min.   :-118.4913  
 Class :character   1st Qu.:34.04113   1st Qu.:-118.2612   1st Qu.:34.04060   1st Qu.:-118.2609  
 Mode  :character   Median :34.04681   Median :-118.2524   Median :34.04661   Median :-118.2528  
                    Mean   :34.04298   Mean   :-118.2708   Mean   :34.04281   Mean   :-118.2709  
                    3rd Qu.:34.05110   3rd Qu.:-118.2410   3rd Qu.:34.05088   3rd Qu.:-118.2388  
                    Max.   :34.16529   Max.   :-118.1165   Max.   :34.16529   Max.   :-118.1165  
                    NA's   :1354       NA's   :1354        NA's   :9110       NA's   :9110       
 plan_duration       passholder_type    start_station_Name start_Go_live_date start_Region       start_Status      
 Min.   :  0.00000   Length:639786      Length:639786      Length:639786      Length:639786      Length:639786     
 1st Qu.:  1.00000   Class :character   Class :character   Class :character   Class :character   Class :character  
 Median : 30.00000   Mode  :character   Mode  :character   Mode  :character   Mode  :character   Mode  :character  
 Mean   : 33.56933                                                                                                 
 3rd Qu.: 30.00000                                                                                                 
 Max.   :365.00000                                                                                                 
                                                                                                                   
 start_latitude     start_longitude     end_station_Name   end_Go_live_date    end_Region         end_Status       
 Min.   : 0.00000   Min.   :-118.4913   Length:639786      Length:639786      Length:639786      Length:639786     
 1st Qu.:34.04099   1st Qu.:-118.2612   Class :character   Class :character   Class :character   Class :character  
 Median :34.04681   Median :-118.2524   Mode  :character   Mode  :character   Mode  :character   Mode  :character  
 Mean   :33.82411   Mean   :-117.5106                                                                              
 3rd Qu.:34.05110   3rd Qu.:-118.2410                                                                              
 Max.   :34.16529   Max.   :   0.0000                                                                              
 NA's   :1354       NA's   :1354                                                                                   
  end_latitude      end_longitude      
 Min.   : 0.00000   Min.   :-118.4913  
 1st Qu.:34.04060   1st Qu.:-118.2612  
 Median :34.04652   Median :-118.2528  
 Mean   :33.83797   Mean   :-117.5596  
 3rd Qu.:34.05088   3rd Qu.:-118.2388  
 Max.   :34.16529   Max.   :   0.0000  
 NA's   :10287      NA's   :10287      

Station 9999 is the same station as 5th and olive, but they moved it across the pershing square thing to 6th and olive.

Also, we’ll need to look at the live date and the trip date. There are some trips before the live date that are probably simulatons or test runs. This has an effect on some of the locations.

Rearrange the bikes full data

colnames(bikes_full)
 [1] "end_station"         "start_station"       "trip_id"             "bike_id"             "trip_route_category"
 [6] "start_time"          "end_time"            "start_lat"           "start_lon"           "end_lat"            
[11] "end_lon"             "plan_duration"       "passholder_type"     "start_station_Name"  "start_Go_live_date" 
[16] "start_Region"        "start_Status"        "start_latitude"      "start_longitude"     "end_station_Name"   
[21] "end_Go_live_date"    "end_Region"          "end_Status"          "end_latitude"        "end_longitude"      
bikes_full_ordered<- bikes_full[ , c("trip_id", "bike_id", "trip_route_category",
                                    "start_station", "end_station",
                                    "start_station_Name", "end_station_Name",
                                    "start_lat", "start_lon", 
                                    "end_lat", "end_lon", 
                                    "start_Region", "end_Region", 
                                    "start_Status", "end_Status",
                                    "start_time", "end_time", 
                                    "plan_duration", "passholder_type",
                                    "start_Go_live_date", "end_Go_live_date", 
                                    "start_latitude", "start_longitude",
                                    "end_latitude", "end_longitude")]
head(bikes_full_ordered)

Now that we’ve got the stations taken care of, we can start looking at the times.

bikes<- bikes_full_ordered
bikes$start_time<- as.POSIXct.POSIXlt(strptime(bikes$start_time, "%d/%m/%Y %I:%M:%S %p", tz='PST8PDT'))
bikes$end_time<- as.POSIXct.POSIXlt(strptime(bikes$end_time, "%d/%m/%Y %I:%M:%S %p", tz='PST8PDT'))
# Bikes Data
bikes$start_Go_live_date<- as.POSIXct.POSIXlt(strptime(bikes$start_Go_live_date, format="%m/%d/%Y", tz='PST8PDT'))
bikes$end_Go_live_date<- as.POSIXct.POSIXlt(strptime(bikes$end_Go_live_date, format="%m/%d/%Y", tz='PST8PDT'))

First, We’ll take a look at the duration. The difftime gives minutes

#there's some nas in the start and end time. we'll have to ignore them for now.
duration<- bikes$end_time - bikes$start_time
duration<- as.numeric(duration) #minutes
summary(duration)
      Min.    1st Qu.     Median       Mean    3rd Qu.       Max. 
-116.00000    7.00000   12.00000   38.33932   24.00000 8849.00000 
length(duration[duration<=0]) #there's 7 values where the difference is <=0
[1] 7
duration[duration<=0]
[1] -104 -109 -106 -111 -108 -114 -116
bikes[which(duration<=0),]
bikes[which(duration<=0),c("start_time", "end_time", "bike_id")]
#all of these happened on 11/5 around 1AM or 2AM.  This was the Daylight Saving time change! we need to add an hour to the end time.  #we'll have to look at the other time changes as well.  Need to add 2 hours because R accounts for the time switch.
temp1<- as.POSIXct(bikes[which(duration<=0),"end_time"] + 3600*2, tz='PST8PDT')
bikes[which(duration<=0),"end_time"]<- temp1
duration<- difftime(time1=bikes$end_time, time2=bikes$start_time, units = "mins")
duration<- as.numeric(duration) #minutes
summary(duration)
      Min.    1st Qu.     Median       Mean    3rd Qu.       Max. 
   1.00000    7.00000   12.00000   38.34063   24.00000 8849.00000 
#ok.  those are fixed. 
#now to look at the other time changes.  
#3/12/17 2AM->3AM
test_time1<- strptime("12/03/2017 01:00:00 AM", format="%d/%m/%Y %I:%M:%S %p", tz='PST8PDT')
test_time2<- strptime("12/03/2017 03:00:00 AM", format="%d/%m/%Y %I:%M:%S %p", tz='PST8PDT')
bikes[which(bikes$start_time>test_time1 & bikes$start_time<test_time2),c("start_time", "end_time")]
duration[which(bikes$start_time>test_time1 & bikes$start_time<test_time2)]
[1]   3 939  14  41 908   4  17  13
#Looks like R takes care of these so long as they're coded as correct times.  No need to worry about it.
#Now let's look at long durations duration > 1440 minutes (1 day)
bikes[which(duration>1440),] # There's 2123 rows here.  that's a lot!
bikes[which(duration>1440 & bikes$end_station=="3000"),] #1322 are where the ending station is 3000.
# I'm going to assume that these bikes weren't returned.  
summary(duration[which(duration>1440&bikes$end_station=="3000")]) # we need to tag these as such somehow.
    Min.  1st Qu.   Median     Mean  3rd Qu.     Max. 
1442.000 1787.500 2380.500 2578.438 2961.750 8849.000 
bikes[which(duration>1440 & bikes$end_station!="3000"),] #801 left
summary(duration[which(duration>1440&bikes$end_station!="3000")]) #anywhere from a day to 6 days
    Min.  1st Qu.   Median     Mean  3rd Qu.     Max. 
1442.000 1610.000 2013.000 2367.436 2698.000 8678.000 
# I'll change the end times to 1401 minutes after the start time.  That's 1 minute greater than a day.  #need to note that in the summary
temp1<- as.POSIXct(bikes[which(duration>1440),"start_time"] + 60*60*24+60, tz='PST8PDT')
bikes[which(duration>1440),"end_time"]<- temp1
duration<- difftime(time1=bikes$end_time, time2=bikes$start_time, units = "mins")
duration<- as.numeric(duration) #minutes
summary(duration)
      Min.    1st Qu.     Median       Mean    3rd Qu.       Max. 
   1.00000    7.00000   12.00000   34.83045   24.00000 1441.00000 
hist(duration)

#revisit ..
#Error in hist.default(duration, xlim = c(0, 60), breaks = seq(from = 0, : some 'x' not counted; maybe 'breaks' do not span range of 'x'
#hist(duration, xlim=c(0,30), breaks=seq(from=0, to=1445, by=1))
#hist(duration, xlim=c(0,60), breaks=seq(from=0, to=1445, by=1))

It looks like most of the trips are pretty short. Let’s make a new attribute that is the number of pay periods (30 minute intervals). I’ll use the ceiling function to round up if the duration goes up by a minute.

pay_periods<- ceiling(duration/30)
hist(pay_periods) #looks the same.  Let's look at a table

pay_period_counts<- summary(as.factor(pay_periods))
duration_counts<- summary(as.factor(duration))
hist(pay_periods, xlim=c(0,4), breaks=seq(from=0, to=50, by=1))

hist(pay_periods, xlim=c(0,15), breaks=seq(from=0, to=50, by=1))

#Percent of pay periods
cumsum(pay_period_counts)/length(duration)
           1            2            3            4            5            6            7            8            9 
0.8111180926 0.9083474787 0.9435920761 0.9600788389 0.9690365216 0.9742992188 0.9795994286 0.9821971722 0.9839149341 
          10           11           12           13           14           15           16           17           18 
0.9851903605 0.9862250815 0.9873613990 0.9880538180 0.9886477666 0.9891776313 0.9896793615 0.9900873104 0.9904639989 
          19           20           21           22           23           24           25           26           27 
0.9907640992 0.9910610735 0.9913017790 0.9915409215 0.9917425514 0.9919785678 0.9921833238 0.9924068360 0.9925834576 
          28           29           30           31           32           33           34           35           36 
0.9928085329 0.9930367342 0.9932618094 0.9934978258 0.9937416574 0.9939385982 0.9941558584 0.9943574883 0.9945825635 
          37           38           39           40           41           42           43           44           45 
0.9947982607 0.9949873864 0.9951702601 0.9953421925 0.9955328813 0.9957188810 0.9958986286 0.9960846283 0.9962409306 
          46           47           48           49 
0.9963800396 0.9965207116 0.9966817029 1.0000000000 
pay_period_counts/length(duration)
              1               2               3               4               5               6               7 
0.8111180926122 0.0972293860760 0.0352445974123 0.0164867627613 0.0089576827252 0.0052626972144 0.0053002097576 
              8               9              10              11              12              13              14 
0.0025977436205 0.0017177618766 0.0012754264707 0.0010347209848 0.0011363174561 0.0006924190276 0.0005939486016 
             15              16              17              18              19              20              21 
0.0005298646735 0.0005017302661 0.0004079489079 0.0003766884552 0.0003001003461 0.0002969743008 0.0002407054859 
             22              23              24              25              26              27              28 
0.0002391424633 0.0002016299200 0.0002360164180 0.0002047559653 0.0002235122369 0.0001766215578 0.0002250752595 
             29              30              31              32              33              34              35 
0.0002282013048 0.0002250752595 0.0002360164180 0.0002438315312 0.0001969408521 0.0002172601464 0.0002016299200 
             36              37              38              39              40              41              42 
0.0002250752595 0.0002156971237 0.0001891257389 0.0001828736484 0.0001719324899 0.0001906887616 0.0001859996936 
             43              44              45              46              47              48              49 
0.0001797476031 0.0001859996936 0.0001563022636 0.0001391090146 0.0001406720372 0.0001609913315 0.0033182970556 
#Percent of duration
cumsum(duration_counts)/length(duration)
           6            5            7            8            4            9           10           11           12 
0.0638447856 0.1260999772 0.1876799430 0.2430765912 0.2967445365 0.3451872970 0.3902476766 0.4302485519 0.4656525776 
           3           13           14           15           16           17           18           19           20 
0.5006048898 0.5319856952 0.5606155808 0.5865383112 0.6098836173 0.6303310795 0.6486043771 0.6647691572 0.6798429475 
           2           21           22            1           23           24           25           26           27 
0.6944837805 0.7082821443 0.7209801402 0.7336078001 0.7453414110 0.7564826364 0.7670064678 0.7769785522 0.7864786038 
          28           29           30           31           32           33           34           35           36 
0.7953737656 0.8035577521 0.8111180926 0.8175890063 0.8233503078 0.8285833075 0.8335005768 0.8380989893 0.8424801418 
          37           38           39           40           41         1441           43           42           44 
0.8466815466 0.8505672209 0.8543200383 0.8578884189 0.8612707999 0.8645890970 0.8677401506 0.8708114901 0.8738124936 
          46           45           48           47           49           50           51           52           54 
0.8766900182 0.8795159632 0.8822309335 0.8849287105 0.8874592442 0.8899397611 0.8923577571 0.8947757531 0.8971234131 
          53           55           56           57           58           59           60           61           62 
0.8993319641 0.9015108177 0.9036756040 0.9057794325 0.9078207401 0.9098104679 0.9116657757 0.9134569997 0.9151763246 
          65           63           64           66           67           68           69           71           72 
0.9167518514 0.9183211261 0.9198872748 0.9213893396 0.9228132532 0.9241605787 0.9254438203 0.9267083056 0.9279696649 
          70           74           75           73           76           78           79           77           82 
0.9291888225 0.9304048541 0.9315802471 0.9327493881 0.9338591341 0.9349407458 0.9360192314 0.9370727087 0.9381230599 
          81           80           85           84           86           87           88           83           89 
0.9391124532 0.9400768382 0.9410052736 0.9418790033 0.9427417918 0.9435873870 0.9444314193 0.9452738885 0.9461132316 
          90           91           92           94           96           93           95          101           97 
0.9469103732 0.9476778173 0.9484311942 0.9491642518 0.9498785531 0.9505537789 0.9512227526 0.9518792221 0.9525294395 
     (Other) 
1.0000000000 
plot(ecdf(duration), ylim=c(0,1))

plot(ecdf(duration), xlim=c(0,60), ylim=c(0,1))

plot(ecdf(pay_periods), xlim=c(0,10), ylim=c(0,1))

summary(as.factor(pay_periods))
     1      2      3      4      5      6      7      8      9     10     11     12     13     14     15     16 
518942  62206  22549  10548   5731   3367   3391   1662   1099    816    662    727    443    380    339    321 
    17     18     19     20     21     22     23     24     25     26     27     28     29     30     31     32 
   261    241    192    190    154    153    129    151    131    143    113    144    146    144    151    156 
    33     34     35     36     37     38     39     40     41     42     43     44     45     46     47     48 
   126    139    129    144    138    121    117    110    122    119    115    119    100     89     90    103 
    49 
  2123 
#81.1 percent of the data is < 30 minutes
# 9.7 percent of the data is >30 minutes and < 60 minutes
# we can make a new attribute called short trips for trips < 30 minutes.  This will help when determining the cost.

Let’s look at the trips where the trip date was before the go live date

a<-bikes[which(bikes$start_time < bikes$start_Go_live_date), ] #There's 94 in the start #all in pasadena and port of LA
b<- bikes[which(bikes$end_time < bikes$end_Go_live_date), ] #93 here.  
bikes[which(bikes$trip_id==setdiff(a$trip_id, b$trip_id)),]
a
b
# we should just drop these from the data.  They appear to be test trips.

How about trips between Regions

between_regions<- bikes[which(bikes$start_Region != bikes$end_Region & bikes$start_station!="3000" & bikes$end_station != "3000"), ] # 681 trips all one way (makes sense).  
table(between_regions$start_Region, between_regions$end_Region) #most from dtla to venice or pasadena and venice to LA. 
            
             DTLA Pasadena Port of LA Venice
  DTLA          0       40          5    307
  Pasadena    138        0          0      0
  Port of LA    9        0          0      2
  Venice      169        1         10      0
duration[which(bikes$start_Region != bikes$end_Region & bikes$start_station!="3000" & bikes$end_station != "3000") ]
  [1]   63   68  105  110  485  167   82  486   46  107  133   81  111  108   41   57   67  135   59  167  129   72
 [23]   66   53  101   54   58   27   41  192  136   51   70  173   82   60  172   59  129   82  184  543  529  278
 [45]  279  149   88   91  196  132  132   82   89  106  152  133   67  150   71   87  200  116  392  391  105  104
 [67]  290   93  128   82 1324  339  622 1317  289  291  336 1405   79  155  403  626  108  338  131 1381   95  225
 [89]   97 1403  111  127  113  137  284  340 1441  241  128  128  111  189  136  122  322  149   90   93  125   29
[111]   43  180  128   55  231   40  131   32  112  112   74  141  141  283   96  144   97  144   77 1122   97  320
[133]   58   75   94  467   81  179  111  114  116  344  139  134  337   82   79  158  157  138  137   70   93  126
[155]  193  178  230 1441  210 1074   26  273 1286  183 1296  185 1169   88 1159  311   42  184   20   12  375  184
[177]  186  182 1064  182  595  970 1253  182   19  214  348  377  310   29  444 1204  185  185  380   31   12  188
[199]  321  216   52  256  865  887  182  217  458    9   20  442  834 1121 1122  808  182  185  239  122  190  182
[221] 1374  150   13  184  382   13 1015 1272  188  518  360  191  182  434 1123  101  192  439   84  430  192  182
[243]   11  182  222  191   28  353  192  127  182  191  824 1207  184  825    9  187  183  356  133  198   96   95
[265]  163  165   88  166  183  179  314  128  130  181  225   94   64   55  130   49  144   46   54  415  110   73
[287]   92   41  343  342   55   52   50   61   79   71  136  129  142  137  140  213  285  136   87  107  104  211
[309]  141  103  172   85   77  124  174  359  143  133  340  139  123  163  142  136   88  115  141  408  334   89
[331]  128 1009  112 1014  614  388  610  161  122  237   66  236  162  234   96   43  146  137   71  179  178  141
[353]  141  143  141  950  950 1441  777  774  444 1441  204 1441 1441 1441   77   69   80  158  149  204  304  304
[375]  550  124   91  181  417  363  400  170  206  180  366  156  416 1069  130  273 1068  105  538  536  395  394
[397]  334  242  120  335  745  102  378   72   37  208  182  163  115  272  229  274  208  141  260  249  169  212
[419]  113  207  151  244  157  170  255  137  244  118  201  202  677  210  211  161  124  194  187  403  644  320
[441]  165 1039  215  180   95  126  274  183  179  221  181  122  108  163  140  186 1376   54  166  397  301  159
[463]  191  125  131  122  236  155  561  300  304  127  338  120  174  154  167  341  385  207  280  164  208  162
[485]  149  201  151  284  154  340  184  227  143  156  342  191  462  319  161  168  161  302  369  234  104  163
[507]  306  177  459  141  369  130  185  169  284  231  162  131  351  342  267  435  130  116  186   98  190  135
[529]  214  177  136  115  142  213  137  148  146  128  179  102  181  148  136  172  191  175  130   94  141  135
[551]  215  175  140   83  109  150   90  151   98   73  126  524  108  121  124  148  163  169  125  119   96  213
[573]  134  478  132  148  126  289   84  136  138  107  248  114  157  199   76  132  118  148  111  138  122   79
[595]  111  106   86  125  210   61 1441  124  134  142   73  140  171  142   82  141  127  120  211   49   77  140
[617]   76  141  115  150  143  211  210   90  277  277  141  273  140  275  277  122  277  110  230  235  103  161
[639]  254  551  233  142  247  143  140  105  107  108  105  152  154  124  103  174  145  149  173  159  580  171
[661]   67  115  102  103  169 1441   40  114  704  268  267   49  158  112  465  431  286  248  287  240  212
between_regions[,]
write.csv(bikes, "./data/bicycle_clean.csv", row.names = FALSE)
---
title: 'TAMU 2019 Data Competition: Data Cleaning'
output:
  html_notebook: default
authors: null
---

Correcting Stations Data and adding latitudes and longitudes. 
```{r}
rm(list=ls())
options(digits=10) #this is needed because the lat/lon will get truncated otherwise.
Sys.Date()
```

Feel The Station Data
```{r}
stations<- readxl::read_xlsx("./data/Station_Table.xlsx")
head(stations)
dim(stations)
colSums(is.na(stations))
```

Find Missing Stations
```{r}
sapply(stations, function(itr) stations[which(is.na(itr)),]$Station_ID)$Station_Name
```

Fixing Missing Stations
```{r}
i_4110<-which(stations$Station_ID=="4110")
stations[ i_4110,]<- c(Station_ID="4110",
                   Station_Name="Soul Cycle",
                   Go_live_date="2017-09-07",
                   Region="DTLA",
                   Status="Inactive")

i_4276<-which(stations$Station_ID=="4276")
stations[ i_4276,]<- c(Station_ID="4276",
                   Station_Name="Mariachi Plaza",
                   Go_live_date="2017-12-02",
                   Region="DTLA",
                   Status="Inactive")
#https://www.laworks.com/opportunity/a0C1N00000GHHzqUAH

##This one needs to be recoded for all the other files.
i_4118<-which(stations$Station_ID=="4118")
stations[ i_4118,]<- c(Station_ID="4118",
                   Station_Name="Channing St",
                   Go_live_date="2017-9-07",
                   Region="DTLA",
                   Status="Inactive")

# These two stations were special events for 3/26/2017.
#https://thecabe.com/forum/threads/ciclavia-venice-beach-california-march-26-2017.107254/
station_3009<- c(Station_ID="3009",
                 Station_Name="Windward and Pacific",
                 Go_live_date="2017-26-03",
                 Region="Venice",
                 Status="Inactive")
stations<- rbind(stations, station_3009)

station_3039<- c(Station_ID="3039",
                 Station_Name="Culver and Washington",
                 Go_live_date="2017-26-03",
                 Region="Venice",
                 Status="Inactive")
stations<- rbind(stations, station_3039)

# This station is the same as the Olive and 5th station, but it moved so far, it needs a new name.
station_9999<- c(Station_ID="9999",
                 Station_Name="Olive and 6th",
                 Go_live_date="2016-10-01",
                 Region="DTLA",
                 Status="Inactive",
                 latitude = 34.048038,
                 longitude = -118.253738)
stations<- rbind(stations, station_9999)
```

Finding Active/Inactive Stations/Region
```{r}
table(stations$Region, stations$Status)
#revisit
#test for chisq.test.
#p-value < 0.05 not independent ..corr might be exists
#p-value > 0.05 independent 
summary(table(stations$Region, stations$Status))

inactiveAllStationList<-stations[stations$Status=="Inactive", c("Station_ID", "Region")]
table(inactiveAllStationList$Region)

inactiveStationListPerRegion<-sapply(split(inactiveAllStationList, inactiveAllStationList$Region), function(col) col$Station_ID)
inactiveStationListPerRegion

activeAllStationList<-stations[stations$Status=="Active", c("Station_ID", "Region")]
#virtual region N/A
table(activeAllStationList$Region) 

activeStationListPerRegion<-sapply(split(activeAllStationList, activeAllStationList$Region), function(col) col$Station_ID)
activeStationListPerRegion
```
The loops below try to find the most frequent latitudes and longitudes associated with each station.  Some stations have multiple latitudes and longitudes with varying numbers.  We'll do this to standardize the data.  Once we find the most frequent latitude and longitude, we'll write it to the stations file.  

```{r}
bikes<- readxl::read_xlsx("./data/LABikeData.xlsx")
```

```{r}
getLatLongForStation <- function(stationId)
{
  startLatLongList<-split(bikes, bikes$start_station==stationId)[["TRUE"]][c("start_lat","start_lon")]
  endLatLongList<-split(bikes, bikes$end_station==stationId)[["TRUE"]][c("end_lat","end_lon")]
  
  uniqLat <- unique(c(startLatLongList$start_lat,endLatLongList$end_lat))
  uniqLong <- unique(c(startLatLongList$start_lon,endLatLongList$end_lon))

  maxNoOfObsForLat<-rep(NA, 0)
  maxNoOfObsForLong<-rep(NA,0)
  
  for (lat in uniqLat)
  {
     startLatCount<- nrow(startLatLongList[startLatLongList$start_lat==lat,])
     if(is.null(startLatCount))
        startLatCount<-0
     
     endLatCount <- nrow(endLatLongList[endLatLongList$end_lat==lat, ])
     if(is.null(endLatCount))
        endLatCount<-0
     
     latCount<-startLatCount + endLatCount
     maxNoOfObsForLat<-c(maxNoOfObsForLat, latCount)
  }
  
  for (long in uniqLong)
  {
     startLongCount<- nrow(startLatLongList[startLatLongList$start_lon==long,])
     if(is.null(startLongCount))
       startLongCount<-0
     
     endLongCount <- nrow(endLatLongList[endLatLongList$end_lon==long, ])
     if(is.null(endLongCount))
        endLongCount<-0
     
     LongCount<-startLongCount + endLongCount
     maxNoOfObsForLong<-c(maxNoOfObsForLong, LongCount)
  }
  
  LatDf<-data.frame(uniqLat,maxNoOfObsForLat)
  LongDf<-data.frame(uniqLong, maxNoOfObsForLong)
  
  tmpLat<-0
  tmpLong<-0
  
  if(dim(LatDf)[1] >=1 & dim(LatDf)[2] >=1)
    tmpLat<-LatDf[order(LatDf$maxNoOfObsForLat, decreasing = TRUE),][1,1]
  
  if(dim(LongDf)[1] >=1 & dim(LongDf)[2] >=1)
    tmpLong<-LongDf[order(LongDf$maxNoOfObsForLong, decreasing = TRUE),][1,1]
  
  return(c(tmpLat, tmpLong))
  
}
system.time(vOfLatLong<-sapply(stations$Station_ID, getLatLongForStation))
cleanStations<-cbind(stations, latitude=unname(vOfLatLong[1,]), longitude=unname(vOfLatLong[2,]))

```

more cleanup station id 4164, 4217 no entry in bike data
removing

```{r}

cleanStations<-cleanStations[!cleanStations$Station_ID==4164, ]
cleanStations<-cleanStations[!cleanStations$Station_ID==4217, ]
write.csv(cleanStations, "./data/stations_cleaned.csv", row.names = FALSE)

```

Clean Bike Data

```{r}
colSums(is.na(bikes))
```

NA's for bike data columns ..need to fix 
end_station (43198)
start_lat (1354),
start_lon (1354),
end_lat (9110),
end_lon (9110),
plan_duration (384)

Fix the missing end stations:
```{r}
for(i in 1:length(bikes$end_station)){
  if(is.na(bikes$end_station[i])){
      latitude<- bikes$end_lat[i]
      index<- match(latitude, cleanStations$latitude)
      if(index!=1 | is.na(index) ){
        if(is.na(index)){
          longitude<- bikes$end_lon[i]
          index2<- match(longitude, cleanStations$longitude)
          bikes$end_station[i]<- cleanStations[index2, "Station_ID"]
        }
        else{
          bikes$end_station[i]<- cleanStations[index, "Station_ID"]
        }
      }
  }
}

```

Look at the missing data again to see what we have.  
```{r}
nrow(bikes[which(is.na(bikes$end_station)), ])
```

Fill in the missing stations that have missing end lat/lon as virtual stations.  
```{r}
for(i in 1:length(bikes$end_station)){
  if(is.na(bikes$end_station[i])){
          bikes$end_station[i]<- 3000
  }
}
```

Start latitude & longitude are NA ..they are mapped to virtual station 3000
```{r}
unique(bikes[which(is.na(bikes$start_lat)), ]$start_station)
unique(bikes[which(is.na(bikes$start_lon)), ]$start_station)
```

Now fix for End latitude & longitude
both has mapped to virtual station 3000 
```{r}

unique(bikes[which(is.na(bikes$end_lat)), ]$end_station)
unique(bikes[which(is.na(bikes$end_lon)), ]$end_station)

```

After looking at the map, location 4118 and 4108 are the same. Code the 4118 as 4008. 
```{r}
bikes[which(bikes$end_station==4118), "end_station"]<- 4108
```

passholders and plan duration.  
There are 269 coded as 150.  that are monthly passes.  going to recode those as 30.  

```{r}
table(bikes$plan_duration, bikes$passholder_type)

for(i in 1:length(bikes$start_station)){
  if(bikes$plan_duration[i] == 150 & !is.na(bikes$plan_duration[i])  ){
    bikes$plan_duration[i]<- 30
  }
}

```

There are 384 coded as na  
it looks like all these are monthly passholders. adding 30 in for the duration on these too.

```{r}
bikes[which(is.na(bikes$plan_duration)), ]  
bikes[is.na(bikes$plan_duration), ]$passholder_type

for(i in 1:length(bikes$start_station)){
  if(bikes$passholder_type[i] == "Monthly Pass" & is.na(bikes$plan_duration[i])  ){
    bikes$plan_duration[i]<- 30
  }
}

#all the plan durations are fixed now
summary(as.factor(bikes$plan_duration))

```

So, lots of walkups buy a full day pass and some even buy a monthly pass.
1044 monthly passes coded as 365 day passes.  not sure what those are.  
nothing really unique about these all different times and locations.
```{r}

table(bikes$plan_duration,bikes$passholder_type)
bikes[which(bikes$plan_duration==365 & bikes$passholder_type=="Monthly Pass"), ]

```

Most of the NA values should took care, double check. 

```{r}
summary(bikes)
```

now we need to fix outliers in the data.  
Starting to look for outliers.  We'll do the obvious outliers first, the locations with 0 lat/lon, or positive lon
```{r}
temp1<- bikes[which(bikes$start_lon>0),]
temp1
cleanStations[which(cleanStations$Station_ID=="3039"), ]
#this one is coded as stn 3039 but we know that one was only active for an event.  go by the start lat/lon
match(temp1$start_lon, cleanStations$longitude)
match(temp1$start_lat, cleanStations$latitude)

#they don't match anything in our station data. 
# the map indicates channing street and the LA warehouse stations 4108 and 4118
# code this one as 4108 1 la warehouse
bikes[which(bikes$start_lon>0),c("start_station", "start_lon")]<- c(4108,  -118.238258)

#Need to just combine 1 LA WHSE and Channing ST. 
bikes[which(bikes$end_station=="4118"), "end_station" ] <- 4108 
bikes[which(bikes$start_station=="4108"),]
```

Now the zeros
```{r}
bikes_temp <- bikes #save this off in case i screw something up.
# start location
temp<- bikes[which(bikes$start_lon==0 | bikes$start_lat==0),]
index<- match( temp$start_station, cleanStations$Station_ID) #67
temp
index # these are all the la warehouse
bikes[which(bikes$start_lon==0|bikes$start_lat==0), "start_lon"]<- cleanStations$longitude[67]
bikes[which(bikes$start_lon==0|bikes$start_lat==0), "start_lat"]<- cleanStations$latitude[67]                                                                     
#end location
temp<- bikes[which(bikes$end_lon==0 | bikes$end_lat==0),]
match( temp$end_station, cleanStations$Station_ID)# all 67 again
bikes[which(bikes$end_lon==0 | bikes$end_lat==0),"end_lon"]<- cleanStations$longitude[67]
bikes[which(bikes$end_lon==0 | bikes$end_lat==0),"end_lat"]<- cleanStations$latitude[67]
```

Now that the locations appear to be fixed, let's look at the summary again
```{r}
summary(bikes)
```

Joining data frames

```{r}

sum(is.na(bikes$start_time))

```

```{r}
start_stations<- cleanStations
end_stations<- cleanStations

colnames(start_stations)<- c("start_station", "start_station_Name",
                             "start_Go_live_date",
                             "start_Region", "start_Status", "start_latitude",
                             "start_longitude")
colnames(end_stations)<- c("end_station", "end_station_Name", "end_Go_live_date",
                           "end_Region", "end_Status", "end_latitude",
                           "end_longitude")
colnames(bikes)

```
Joining the stations data table to the bikes data table.  Coding the start and end locations.
```{r}
df_1<- merge(bikes, start_stations, all.x=TRUE, sort=FALSE)
bikes_full<- merge(df_1, end_stations, all.x=TRUE, sort=FALSE)

```

revisit types doesnt make sense to me for end station
do we need to fix or
```{r}
summary(bikes_full)
```

Let's explore the starting lat and the one that came from the station table (most frequent location).  I'll just use a cartesian distance because we don't need too much accuracy.
```{r}
start_lat_diff<- (bikes_full$start_lat - bikes_full$start_latitude)*1.15077945*60*5280
start_lon_diff<- (bikes_full$start_lon - bikes_full$start_longitude)*1.15077945*60*5280
end_lat_diff<- (bikes_full$end_lat - bikes_full$end_latitude)*1.15077945*60*5280
end_lon_diff<- (bikes_full$end_lon - bikes_full$end_longitude)*1.15077945*60*5280
plot(start_lon_diff, start_lat_diff, main="Difference in Start Position Most Frequent and Coded", xlab="Longitude Difference (ft)",ylab= "Latitude Diff (ft)",ylim=c(-500,500), xlim=c(-400,400))
grid()

plot(end_lon_diff, end_lat_diff, main="Difference in End Position Most Frequent and Coded", xlab="Longitude Difference (ft)",ylab= "Latitude Diff (ft)",  ylim=c(-500,500), xlim=c(-400,400))
grid()

```

```{r}
bikes_full[which(start_lat_diff< -300),] #4104 obs
bikes_full[which(end_lat_diff< -300),] #3787 obs
cleanStations[which(cleanStations$Station_ID=="3063"), ]
#looks like that's station 3063 at Pershing Square.  That's the station 9999 that I added for 6th and olive.
cleanStations[which(cleanStations$Station_ID=="9999"), ]
#they mustve moved where the station 3063 was. I'm going to code these as olive and 6th since it's pretty far away from olive and 5th.  
temp1<- cleanStations[which(cleanStations$Station_ID=="9999"), c('latitude', 'longitude', "Go_live_date", 'Status','Station_Name')]

  
  bikes_full[which(start_lat_diff< -300), "start_station"]<- "9999"
  bikes_full[which(start_lat_diff< -300), "start_latitude"]<- temp1[1]
  bikes_full[which(start_lat_diff< -300), "start_longitude"]<- temp1[2]
  bikes_full[which(start_lat_diff< -300), "start_Go_live_date"]<- temp1[3]
  bikes_full[which(start_lat_diff< -300), "start_Status"]<- temp1[4]
  bikes_full[which(start_lat_diff< -300), "start_station_Name"]<- temp1[5]
  
  bikes_full[which(end_lat_diff< -300), "end_station"]<- "9999"
  bikes_full[which(end_lat_diff< -300), "end_latitude"]<- temp1[1]
  bikes_full[which(end_lat_diff< -300), "end_longitude"]<- temp1[2]
  bikes_full[which(end_lat_diff< -300), "end_Go_live_date"]<- temp1[3]
  bikes_full[which(end_lat_diff< -300), "end_Status"]<- temp1[4]
  bikes_full[which(end_lat_diff< -300), "end_station_Name"]<- temp1[5]

bikes_full[which(start_lon_diff> 200),] #87 obs
bikes_full[which(end_lon_diff> 200),] #80 obs
# 3 stations Grand/LATTC, 7th & Westminster, Pasadena Central Library
# 4227, 4213, 4148
bikes_full[which(start_lon_diff> 200 & bikes_full$start_station=="4227"),] #37 here
# we'll code these as the starting locations in the station table and keep the original long/lat
temp1<- bikes_full[which(start_lon_diff > 200 & bikes_full$start_station=="4227"),c("start_lat", "start_lon")]


bikes_full[which(start_lon_diff > 200 & bikes_full$start_station=="4227"),"start_latitude"]<- temp1$start_lat[1]
bikes_full[which(start_lon_diff > 200 & bikes_full$start_station=="4227"),"start_longitude"]<- temp1$start_lon[1]
bikes_full[which(end_lon_diff > 200 & bikes_full$end_station=="4227"),"end_latitude"]<- temp1$start_lat[1]
bikes_full[which(end_lon_diff > 200 & bikes_full$end_station=="4227"),"end_longitude"]<- temp1$start_lon[1]


bikes_full[which(start_lon_diff> 200),] #50 left
bikes_full[which(start_lon_diff> 200 & bikes_full$start_station=="4213"),] #48 here
bikes_full[which(end_lon_diff> 200 & bikes_full$end_station=="4213"),] #40 here
#looks like they moved 7th and westminster down the street.  
# we'll keep the lats/lons
temp1<- bikes_full[which(start_lon_diff > 200 & bikes_full$start_station=="4213"),c("start_lat", "start_lon")]
bikes_full[which(start_lon_diff > 200 & bikes_full$start_station=="4213"),"start_latitude"]<- temp1$start_lat[1]
bikes_full[which(start_lon_diff > 200 & bikes_full$start_station=="4213"),"start_longitude"]<- temp1$start_lon[1]
bikes_full[which(end_lon_diff > 200 & bikes_full$end_station=="4213"),"end_latitude"]<- temp1$start_lat[1]
bikes_full[which(end_lon_diff > 200 & bikes_full$end_station=="4213"),"end_longitude"]<- temp1$start_lon[1]

bikes_full[which(start_lon_diff> 200),] #2 left
bikes_full[which(end_lon_diff> 200),] #2 left
#pasadena library looks like they put the station in a different start and these 2 are before the live start date.
temp1<- bikes_full[which(start_lon_diff > 200 & bikes_full$start_station=="4148"),c("start_lat", "start_lon")]
bikes_full[which(start_lon_diff > 200 & bikes_full$start_station=="4148"),"start_latitude"]<- temp1$start_lat[1]
bikes_full[which(start_lon_diff > 200 & bikes_full$start_station=="4148"),"start_longitude"]<- temp1$start_lon[1]
bikes_full[which(end_lon_diff > 200 & bikes_full$end_station=="4148"),"end_latitude"]<- temp1$start_lat[1]
bikes_full[which(end_lon_diff > 200 & bikes_full$end_station=="4148"),"end_longitude"]<- temp1$start_lon[1]

bikes_full[which(start_lon_diff> 100),] #1364
bikes_full[which(end_lon_diff> 100),] #1041
#station 3046 2nd & Hill, looks like they had it around the corner for awhile.  
temp1<- bikes_full[which(start_lon_diff > 100 & bikes_full$start_station=="3046"),c("start_lat", "start_lon")]
bikes_full[which(start_lon_diff > 100 & bikes_full$start_station=="3046"),"start_latitude"]<- temp1$start_lat[1]
bikes_full[which(start_lon_diff > 100 & bikes_full$start_station=="3046"),"start_longitude"]<- temp1$start_lon[1]
bikes_full[which(end_lon_diff > 100 & bikes_full$end_station=="3046"),"end_latitude"]<- temp1$start_lat[1]
bikes_full[which(end_lon_diff > 100 & bikes_full$end_station=="3046"),"end_longitude"]<- temp1$start_lon[1]


bikes_full[which(start_lon_diff< -100),] #3157
bikes_full[which(end_lon_diff< -100),] #4039
#looks like stn 3005 7th and flower got moved around the corner.
temp1<- bikes_full[which(start_lon_diff < -100 & bikes_full$start_station=="3005"),c("start_lat", "start_lon")]
bikes_full[which(start_lon_diff < -100 & bikes_full$start_station=="3005"),"start_latitude"]<- temp1$start_lat[1]
bikes_full[which(start_lon_diff < -100 & bikes_full$start_station=="3005"),"start_longitude"]<- temp1$start_lon[1]
bikes_full[which(end_lon_diff < -100 & bikes_full$end_station=="3005"),"end_latitude"]<- temp1$start_lat[1]
bikes_full[which(end_lon_diff < -100 & bikes_full$end_station=="3005"),"end_longitude"]<- temp1$start_lon[1]
# also theres station 4146 city hall west in pasadena 3 observations.  looks like it got moved up the st.  these trips were before the start date. 
temp1<- bikes_full[which(start_lon_diff < -100 & bikes_full$start_station=="4146"),c("start_lat", "start_lon")]
bikes_full[which(start_lon_diff < -100 & bikes_full$start_station=="4146"),"start_latitude"]<- temp1$start_lat[1]
bikes_full[which(start_lon_diff < -100 & bikes_full$start_station=="4146"),"start_longitude"]<- temp1$start_lon[1]
bikes_full[which(end_lon_diff < -100 & bikes_full$end_station=="4146"),"end_latitude"]<- temp1$start_lat[1]
bikes_full[which(end_lon_diff < -100 & bikes_full$end_station=="4146"),"end_longitude"]<- temp1$start_lon[1]

```

```{r}
start_lat_diff<- (bikes_full$start_lat - bikes_full$start_latitude)*1.15077945*60*5280
start_lon_diff<- (bikes_full$start_lon - bikes_full$start_longitude)*1.15077945*60*5280
end_lat_diff<- (bikes_full$end_lat - bikes_full$end_latitude)*1.15077945*60*5280
end_lon_diff<- (bikes_full$end_lon - bikes_full$end_longitude)*1.15077945*60*5280
plot(start_lon_diff, start_lat_diff, main="Difference in Start Position Most Frequent and Coded", xlab="Longitude Difference (ft)",ylab= "Latitude Diff (ft)",ylim=c(-500,500), xlim=c(-400,400))
grid()

plot(end_lon_diff, end_lat_diff, main="Difference in End Position Most Frequent and Coded", xlab="Longitude Difference (ft)",ylab= "Latitude Diff (ft)",  ylim=c(-500,500), xlim=c(-400,400))
grid()

```


revisit 66
```{r}
bikes_full[which(end_lat_diff> 20),] #28
#This is the LA Warehouse location.  80ft off.  we'll leave these be.  there's no indication where this station really is.  it's in a sketchy part of town and the lat/lon indicated it's behind a fence with concertina wire. 
```


```{r}
summary(bikes_full)
```

Station 9999 is the same station as 5th and olive, but they moved it across the pershing square thing to 6th and olive.  

Also, we'll need to look at the live date and the trip date.  There are some trips before the live date that are probably simulatons or test runs.  This has an effect on some of the locations.  

Rearrange the bikes full data
```{r}
colnames(bikes_full)
```


```{r}
bikes_full_ordered<- bikes_full[ , c("trip_id", "bike_id", "trip_route_category",
                                    "start_station", "end_station",
                                    "start_station_Name", "end_station_Name",
                                    "start_lat", "start_lon", 
                                    "end_lat", "end_lon", 
                                    "start_Region", "end_Region", 
                                    "start_Status", "end_Status",
                                    "start_time", "end_time", 
                                    "plan_duration", "passholder_type",
                                    "start_Go_live_date", "end_Go_live_date", 
                                    "start_latitude", "start_longitude",
                                    "end_latitude", "end_longitude")]

head(bikes_full_ordered)
```


Now that we've got the stations taken care of, we can start looking at the times.
```{r}
bikes<- bikes_full_ordered
bikes$start_time<- as.POSIXct.POSIXlt(strptime(bikes$start_time, "%d/%m/%Y %I:%M:%S %p", tz='PST8PDT'))
bikes$end_time<- as.POSIXct.POSIXlt(strptime(bikes$end_time, "%d/%m/%Y %I:%M:%S %p", tz='PST8PDT'))

# Bikes Data
bikes$start_Go_live_date<- as.POSIXct.POSIXlt(strptime(bikes$start_Go_live_date, format="%m/%d/%Y", tz='PST8PDT'))
bikes$end_Go_live_date<- as.POSIXct.POSIXlt(strptime(bikes$end_Go_live_date, format="%m/%d/%Y", tz='PST8PDT'))
```


First, We'll take a look at the duration.  The difftime gives minutes
```{r}
#there's some nas in the start and end time. we'll have to ignore them for now.

duration<- bikes$end_time - bikes$start_time
duration<- as.numeric(duration) #minutes
summary(duration)

length(duration[duration<=0]) #there's 7 values where the difference is <=0
duration[duration<=0]
bikes[which(duration<=0),]
bikes[which(duration<=0),c("start_time", "end_time", "bike_id")]
#all of these happened on 11/5 around 1AM or 2AM.  This was the Daylight Saving time change! we need to add an hour to the end time.  #we'll have to look at the other time changes as well.  Need to add 2 hours because R accounts for the time switch.
temp1<- as.POSIXct(bikes[which(duration<=0),"end_time"] + 3600*2, tz='PST8PDT')
bikes[which(duration<=0),"end_time"]<- temp1

duration<- difftime(time1=bikes$end_time, time2=bikes$start_time, units = "mins")
duration<- as.numeric(duration) #minutes
summary(duration)
#ok.  those are fixed. 
#now to look at the other time changes.  

#3/12/17 2AM->3AM
test_time1<- strptime("12/03/2017 01:00:00 AM", format="%d/%m/%Y %I:%M:%S %p", tz='PST8PDT')
test_time2<- strptime("12/03/2017 03:00:00 AM", format="%d/%m/%Y %I:%M:%S %p", tz='PST8PDT')
bikes[which(bikes$start_time>test_time1 & bikes$start_time<test_time2),c("start_time", "end_time")]
duration[which(bikes$start_time>test_time1 & bikes$start_time<test_time2)]
#Looks like R takes care of these so long as they're coded as correct times.  No need to worry about it.

#Now let's look at long durations duration > 1440 minutes (1 day)
bikes[which(duration>1440),] # There's 2123 rows here.  that's a lot!
bikes[which(duration>1440 & bikes$end_station=="3000"),] #1322 are where the ending station is 3000.
# I'm going to assume that these bikes weren't returned.  
summary(duration[which(duration>1440&bikes$end_station=="3000")]) # we need to tag these as such somehow.
bikes[which(duration>1440 & bikes$end_station!="3000"),] #801 left
summary(duration[which(duration>1440&bikes$end_station!="3000")]) #anywhere from a day to 6 days

# I'll change the end times to 1401 minutes after the start time.  That's 1 minute greater than a day.  #need to note that in the summary
temp1<- as.POSIXct(bikes[which(duration>1440),"start_time"] + 60*60*24+60, tz='PST8PDT')
bikes[which(duration>1440),"end_time"]<- temp1
duration<- difftime(time1=bikes$end_time, time2=bikes$start_time, units = "mins")
duration<- as.numeric(duration) #minutes
summary(duration)
hist(duration)
#revisit ..
#Error in hist.default(duration, xlim = c(0, 60), breaks = seq(from = 0, : some 'x' not counted; maybe 'breaks' do not span range of 'x'

#hist(duration, xlim=c(0,30), breaks=seq(from=0, to=1445, by=1))
#hist(duration, xlim=c(0,60), breaks=seq(from=0, to=1445, by=1))

```

It looks like most of the trips are pretty short.  Let's make a new attribute that is the number of pay periods (30 minute intervals).  I'll use the ceiling function to round up if the duration goes up by a minute.
```{r}
pay_periods<- ceiling(duration/30)
hist(pay_periods) #looks the same.  Let's look at a table
pay_period_counts<- summary(as.factor(pay_periods))
duration_counts<- summary(as.factor(duration))


hist(pay_periods, xlim=c(0,4), breaks=seq(from=0, to=50, by=1))
hist(pay_periods, xlim=c(0,15), breaks=seq(from=0, to=50, by=1))

#Percent of pay periods
cumsum(pay_period_counts)/length(duration)
pay_period_counts/length(duration)
#Percent of duration
cumsum(duration_counts)/length(duration)

plot(ecdf(duration), ylim=c(0,1))
plot(ecdf(duration), xlim=c(0,60), ylim=c(0,1))

plot(ecdf(pay_periods), xlim=c(0,10), ylim=c(0,1))

summary(as.factor(pay_periods))


#81.1 percent of the data is < 30 minutes
# 9.7 percent of the data is >30 minutes and < 60 minutes
# we can make a new attribute called short trips for trips < 30 minutes.  This will help when determining the cost.
```



Let's look at the trips where the trip date was before the go live date
```{r}
a<-bikes[which(bikes$start_time < bikes$start_Go_live_date), ] #There's 94 in the start #all in pasadena and port of LA
b<- bikes[which(bikes$end_time < bikes$end_Go_live_date), ] #93 here.  
bikes[which(bikes$trip_id==setdiff(a$trip_id, b$trip_id)),]
a
b
# we should just drop these from the data.  They appear to be test trips.
```

How about trips between Regions
```{r}
between_regions<- bikes[which(bikes$start_Region != bikes$end_Region & bikes$start_station!="3000" & bikes$end_station != "3000"), ] # 681 trips all one way (makes sense).  

table(between_regions$start_Region, between_regions$end_Region) #most from dtla to venice or pasadena and venice to LA. 

duration[which(bikes$start_Region != bikes$end_Region & bikes$start_station!="3000" & bikes$end_station != "3000") ]
between_regions[,]
```

```{r}
write.csv(bikes, "./data/bicycle_clean.csv", row.names = FALSE)
```


